Terrell tried out for the 2007 WWE Diva Search. Eventually, she made it to the final eight. Terrell stated "I'm ready for this challenge. I will be great at it." Taryn was eventually eliminated fourth.[6] In the month of February 2008, WWE signed her to a development contract and she later debuted in their development facility Florida Championship Wrestling (FCW).[7]

Terrell debuted in FCW alongside Beverly Mullins, and they competed in various matches together, including lingerie matches. Soon afterward, Terrell and Mullins drifted apart, leading to Terrell receiving a larger singles wrestling role as she competed against various other FCW Divas, including Mullins (now renamed to Wesley Holiday), Miss Angela, The Bella Twins, Alicia Fox, and Roucka.[2] Terrell made her FCW television debut when she competed in a twist contest which ended in a no contest. She and Angela then were used as ring announcers for FCW. On the March 11, 2008 episode of FCW Television, Terrell teamed up with Nic Nemeth and Brad Allen to defeat The Puerto Rican Nightmares (Eric Pérez, Eddie Colón and Angela Fong).[1] On the August 2, 2008 episode of FCW Television, Tiffany teamed up with The Bella Twins to defeat Alicia Fox, Roucka and Daisy and again on August 9, 2008.[2]

Later on, Terrell lost her first FCW televised match in a fatal four-way match including Roucka, Holiday, and Fox after Fox dropkicked her from the turnbuckle as Terrell was attempting an aerial move.[2] She then teamed with Nikki Bella and Eve Torres on the December 14 episode of FCW to take on Roucka, Wesley Holiday, and Alicia Fox, which Terrell's team won after Eve pinned Holiday as the remaining Divas fought on the outside.[2] Tiffany participated in the tournament to determine the inaugural Queen of FCW, and defeated Wesley Holiday in the first round before losing to Alicia Fox in the semi-finals.[2] Since then Terrell has appeared various other times as an announcer and wrestler.[2] She teamed up with Angela Fong on several occasions, and also competed against Serena Mancini, April Lee, and Alicia Fox in a four-pack challenge to determine the new number one contender to the Queen of FCW, but was unsuccessful.[2]

On July 30, 2009 episode of FCW Television, Tiffany tamed up with Angela Fong and April Lee to defeat Alicia Fox, Roucka and Serena Deeb in a 6 divas tag team match.[8] On the August 6, 2009 episode of FCW Television, Tiffany teamed up with Yoshi Tatsu to defeat Alicia Fox and Ricky Ortiz in a mixed tag team match.[2] Tiffany unsuccessfully challenged the newly crowned Serena Mancini for the Queen of FCW crown and injured her humerus bone, on the September 24, 2009 taping of FCW.[2] On the February 19, 2010 episode of FCW Television, Tiffany made her return to FCW, teaming with Aksana to defeat Courtney Taylor and Liviana in a divas tag team match.[2][9]

On the May 26 episode of ECW on Sci Fi, Tiffany announced that the match between Jack Swagger and Christian for the ECW Title at the first-ever Extreme Rules pay-per-view would be changed to a triple threathardcore match to include Tommy Dreamer due to Swagger interfering in two of Dreamer's opportunities for the title. In late June 2009, Tiffany was "promoted" to full-time General Manager of ECW. However, Tiffany was absent from television due to a car accident with William Regal substituting as ECW General Manager. In reality, Tiffany had injured her arm in an FCW match. On the October 6 episode of ECW, Tiffany returned to television. On the final episode of ECW on February 16, 2010, Tiffany speared Rosa Mendes after Mendes and Zack Ryder interfered in the ECW Championship match.[15]

On the March 5, 2010 episode of SmackDown, Tiffany made her debut for the brand in a backstage segment, being welcomed by Rey Mysterio.[16] On the March 12, 2010 episode of SmackDown, Tiffany made her in-ring debut, winning a match against Michelle McCool via disqualification after Vickie Guerrero interfered. Following the match, McCool, Guerrero, and Layla attacked Tiffany, until she was saved by Beth Phoenix.[17] The following week, Tiffany and Phoenix defeated LayCool in a tag team match, and again on the April 2 episode of SmackDown.[18]

She then formed an alliance with Kelly Kelly, with the pair being dubbed "The Blondetourage", and they continued to feud with LayCool. On the June 12 of SmackDown!, Tiffany lost her first singles match to Layla after an interference from Michelle McCool.[19] On May 21 episode of SmackDown!, Tiffany teamed up with Kelly Kelly in a losing effort to LayCool.[20] On the July 2 episode of SmackDown!, Tiffany managed Kelly Kelly where she defeated Michelle McCool, during the match Tiffany clotheslined Layla after trying to interfere in the match.[21] On the July 10 episode of Superstars, Tiffany teamed up with Kelly Kelly in losing effort to LayCool after McCool interfered by kicking Kelly in the face.[22] On the July 16 episode of SmackDown!, Tiffany managed Kelly Kelly and Chris Masters where they defeated Layla and Trent Barreta after the interference from Rosa Mendes.[23] While being paired together she also managed Kelly in her Women's Championship match against Layla at the Money in the Bank Pay Per View.[24] On July 23 episode of SmackDown!, Teddy Long announced that Layla would defend the WWE Women's Championship against Tiffany.[25] It would turn out this was Tiffany's last match, on the July 30 episode of Smackdown, Tiffany had her first title shot for the Women's Championship against McCool but failed to capture the championship. She was originally scheduled to fight Layla, however, this was changed due to a decision made by Vickie Guerrero.[26][27]

On August 13, 2010, it was reported that WWE had suspended Tiffany because of an incident involving her real-life husband, Drew McIntyre.[28] Before she could return to WWE programming, Terrell was released from her WWE contract on November 19, 2010.[29]

On December 4, 2010, it was announced that Terrell would face Alissa Flash at the Pro Wrestling Revolution's Chickfight event in San Francisco on February 5, 2012 .[30] On January 4, 2011 it was announced that Terrell was pulled out of the show for personal reasons.[31] ChickFight later claimed that the promotion could not cater to Terrell's requests that she had made despite already having an agreement with the promotion.[31]

On April 5, 2013 Terrell made her debut for Powerslam Brewsky Brawl (PBW), where she teamed up with Jack Jameson in a winning effort defeating Barbi Hayden and Houston Carson in a mixed-tag-team match.[32] On April 8, Terrell made appearance at Coastal Wrestling Federation (CWF) where she teamed up with Sho Funaki in a winning effort defeating Barbie Hayden and Houston Carson.[32] Earlier in that event, Terrell defeated Jen Alise in singles match.[32] Terrell appeared at Maryland Championship Wrestling's Bodyslam Autism event on April 27, 2013.[32]

On November 4, 2012, Terrell made her debut for TNA's developmental territory Ohio Valley Wrestling (OVW), at OVW's Saturday Night Special event, being introduced by the Director of Operations / General Manager, Tralier Park Trash as a special guest referee for the OVW Women's Championship match, between Josette Bynum, Taeler Hendrix and Heidi Lovelace.[33] During the match, Terrell would began a feud with Taeler Hendrix after Terrell cost Hendrix the match after she put her hands on Taryn and Terrell pushed Hendrix down.[33] On the November 10 episode of OVW episode 690, Terrell was interrupted by Hendrix during an interview. Taeler Hendrix then provoked Taryn, only to get attacked for her troubles.[34] Later that event, Terrell refereed the tag-team match between Lovelace, Jessie Belle against Hendrix and Epiphany.[34] Terrell made her in-ring debut on the November 17 episode of OVW episode 691, where she defeated Heidi Lovelace with Taeler Hendrix as special guest referee to become the OVW Women's Champion.[35][36] Later that night, she appeared in a in-ring segment involving Trailer Park Trash and Josette Bryum.[36] On the November 24 episode of OVW episode 692, Taryn appeared in backstage segment with Hendrix. Later that night, she defeated Scarlett Bordeaux in a non-title match, but was attacked by Hendrix who threw animal feces all over her. On the November 28 edition of OVW episode 693, Terrell attacked Hendrix during a in-ring segment trying to get reverge for the pervious week but was stopped by Bostic, but then Terrell would get in a backstage brawl with Hendrix[37] OVW announced that Terrell issued a challenged to Hendrix at OVW's Saturday Night Special, for the OVW Women's Championship on the line with the stipulation that the loser will swim in a pool of animal feces.[38] On the December 1 episode of OVW Saturday Night Special, Terrell lost the Women's Championship to Taeler Hendrix in a special poop in the pool match. After the match, Hendrix tried to attack Taryn, but she gained a measure of revenge when she moved out the way and Hendrix fell in.[39]

On January 13, 2013, at Genesis, Terrell began a storyline with Gail Kim after making a bad call during a gauntlet match and costing Kim's chance to become the number one contender to the Women's Knockout Championship.[44] On the following episode of Impact Wrestling, Terrell appeared backstage with Kim who told Terrell not to make another mistake. Later that night, during Kim's match with Sky, Kim would argue with Terrell, costing herself the match in the process.[45] On January 26, at the tapings of Impact Wrestling in London, England, which aired on tape delay on February 21, Terrell helped Sky defeat Tara, Miss Tessmacher and Gail Kim in a fatal four–way elimination match with Sky lastly eliminating Kim to win the TNA Women's Knockout Championship after Kim provoked Taryn into getting involved in the match.[46][47] On March 10 at Lockdown, towards the end of the TNA Knockouts Championship match, Terrell would spear Kim after being fed up with her and again costing her her shot at the title. After the match, Terrell was attacked by Kim backstage during an interview.[48] On the following episode of Impact Wrestling, Kim revealed that Brooke Hogan put Terrell on probation for putting her hands on Kim at Lockdown. In a tag-team match between Mickie James and Velvet Sky against Gail Kim and Tara, Terrell would once again lose herself by attacking Kim.[49]

On the March 21 episode of Impact Wrestling, Terrell was terminated as Knockouts referee by Hogan and then signed as a TNA Knockout.[50] On the March 28 episode of Impact Wrestling, Terrell called out Gail Kim, however the match never started when Kim and Tara attacked Terrell only to be saved by TNA Women's Knockout Champion, Velvet Sky.[51] On the April 4 episode of Impact Wrestling, Terrell and Sky were defeated by the team of Kim and Tara after the special guest referee Joey Ryan made a fast count on Terrell.[52] Terrell finally faced Kim in singles competition on the April 11 episodes of Impact Wrestling, where Terrell emerged victorious in a match refereed by ODB.[53] On the May 2 episode of Impact Wrestling, Terrell teamed up with Mickie James in a winning effort defeating Kim and Tara. After the match, Kim attacked Terrell and put her in a figure-four leglock around the ringpost.[54] The rivalry between Terrell and Kim culminated in a Last Knockout Standing match on June 2 at the Slammiversary XI pay-per-view, which Terrell won.[55] On the July 11 episode of Impact Wrestling, Terrell was defeated by Kim in a number one contenders ladder match for the Women's Knockout Championship.[56] The following month, Terrell was granted time off of TNA due to a real life pregnancy.[57]

On May 10, 2014, Terrell returned at the tapings for the Knockouts Knockdown 2 pay-per-view where she defeated Karlee Perez, but was later eliminated from the gauntlet match in the main event.[58] On June 16, it was announced on TNA's official website that Terrell would be making her return to the company after one year absence.[59] Terrell made her official televised return on the June 19 episode of Impact Wrestling, welcomed by her former rival Gail Kim and later interrupted by The Beautiful People (Angelina Love and Velvet Sky).[60] This led to Terrell's in-ring return the following week on the June 26 episode of Impact Wrestling, where Kim and Terrell defeated Love and Sky in a tag team match.[61] On the July 24 episode of Impact Wrestling, Terrell unsuccessfully challenged Gail Kim for the TNA Women's Knockout Championship which ended in a no contest when The Beautiful People attacked both Terrell and Kim.[62] Terrell was once again unsuccessful challenging Kim for the title on the August 14 episode of Impact Wrestling, when Kim retained in a match also involving Love and Sky.[63] On the August 27 edition of Impact Wrestling, Terrell defeated Madison Rayne to become the #1 Contender to Kim's Knockouts Championship.[64] Terrell received her title match on the September 3 episode of Impact Wrestling, where she was unsuccessful. After the match, both Terrell and Kim were attacked by the debuting Havok.[65]

On September 19, during the tapings of Impact Wrestling, Terrell defeated the newly crowned TNA Women's Knockout Champion Havok and Gail Kim in a three–way match to win the TNA Women's Knockout Championship for the first time;[66] the match aired on the November 19 episode of Impact Wrestling.[67] On January 7, 2015, during Impact Wrestling's debut on Destination America, Terrell successfully defended the title in a battle royal against the other Knockouts, lastly eliminating Havok.[68] On the January 30 episode of Impact Wrestling, Terrell successfully retained her championship against Gail Kim and Madison Rayne.[69] On the February 20 episode of Impact Wrestling, Terrell once again defended her championship successfully, this time against Angelina Love. After the match, Terrell would start a feud with the recently returned Awesome Kong, after Kong attacked her.[70][71] This led to a match between the two, with Terrell's championship on the line on the March 6 episode of Impact Wrestling, which Terrell won by disqualification. Kong would continue her attack on Terrell after the match, with Gail Kim making the save.[72]

"I told people before that some people grow up watching wrestling from day 1, that wasn't my case and I grew up as always as an athlete, I did powerlifting, cheerleading in school and college, it was in college when I had a friend whom was obsessed with wrestling, he told me that I have to come to a show, I told him okay I'll go. We had front row tickets and I was like OMG this what I wanted to do I figured out what I wanted to do for the rest of my life. I was so excited, there was this perfect hybrid of athleticism and beauty as a women wrestler. This what you get to do is look beautiful and kick some ass, how frecking cool is this! This is my dream job and I'll do whatever to get in that ring and that's what I did."

Terrell is attending the University of New Orleans. She is majoring in marketing.[77] Terrell is a co-leader for a volunteer mission group called Hope Children's Home that provides love and time to children that have been neglected, abused, and discarded.[78] Terrell is a founder for a volunteer mission foundation called Cystic Fibrosis Foundation.[73]

"For the last 3 and a half years, I have been working on a long journey to becoming a Vegan. My first and main reason behind this lifestyle change is the moral and ethical rights of animals. I am speaking up for those who cannot speak for themselves. I am a strong proponent for the humane treatment of animals and am making my stand known by not ingesting any animal products whatsoever. That’s right! No meat, no dairy, no eggs...the list goes on. In short, no animal products or animal by-products."

Terrell first appeared in Playboy in the special College Girls edition of January 2007. She next appeared in the February/March 2010 issue of the Playboy Lingerie Special Edition. The photos were an accumulation of previous photoshoots that she had done for the magazine prior to signing with WWE, and show her naked.[88] She appeared again in Playboy in November 2010, in the special issue Big Boobs, Hot Buns, with the photos having been taken prior to her signing with WWE.[89] Terrell has appeared in an issue of Maxim and on Sky Sports.com.[73]

On October 12, 2013 Terrell confirmed her pregnancy through her Twitter social account and revealed that she would be expecting a girl,[90] which was born on March 2, 2014 named Emerson.[91]